Rate constant of propagation reaction in stationary state of cationic polymerization. Part II. Rate constant of the propagation reaction of alkyl vinyl ethers‐iodine systems

Rate constants of the propagation reaction (kp) of isobutyl vinyl ether and 2‐chloroethyl vinyl ether initiated by iodine were obtained in ethylene chloride and in n‐hexane by the method proposed in the proceeding paper. Also in these systems, it was noticed that kp value increased as the dielectric constant of the polymerization system increased. kp values of these two monomers mentioned above were compared with their monomer reactivity ratio and it was proved that the numerical values which we obtained coincided well with each other. Thus, the method of determination of kp applied here must have been reasonable.